Schätzung eines Direktklang-Zu-Widerhall-Verhältnisses eines Schallsignals

Details

Veröffentlichungs-Nr.

EP3863303

Aktenzeichen

EP20155833

Anmeldetag

6. Februar 2020

Veröffentlichung

23. November 2022

Erteilung

23. November 2022

Rechtsraum

EP

IPC

H04R25/00G10L21/0264

Abstract

A method for estimating a direct-to-reverberant ratio (38) of a sound signal (30) is proposed. The method comprises: determining a first energy value of a sound signal (30) for a first time frame; assigning to an onset value of the first time frame a positive value, if the difference of the first energy value of the first time frame and a second energy value of a preceding second time frame is greater than a threshold, and a zero value otherwise; and determining the direct-to-reverberant ratio (38) by providing an onset signal (42) comprising the onset value to a machine learning algorithm (44), which has been trained to determine the direct-to-reverberant ratio (38) based on said onset signal.

Anmelder

Firmen

Universität Zürich
Sonova AG

Land

🇨🇭 Schweiz

Fachgebiete